US3835885A - Arrangement for metered flow of liquids - Google Patents

Arrangement for metered flow of liquids Download PDF

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Publication number
US3835885A
US3835885A US00298275A US29827572A US3835885A US 3835885 A US3835885 A US 3835885A US 00298275 A US00298275 A US 00298275A US 29827572 A US29827572 A US 29827572A US 3835885 A US3835885 A US 3835885A
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United States
Prior art keywords
chamber
arrangement
piston
outlet
flow
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Expired - Lifetime
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US00298275A
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English (en)
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A Kreyenberg
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/02—Details of liquid circulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means

Definitions

  • a housing has a chamber provided with an upper inlet Oct. 18,1971 Germany 2151786 connected with a liquid supply, and with an outlet connectable with a user.
  • a pressure indicator is lo- [52] US. Cl. 137/551, 73/21 1 cated in the chamber, and a set of washers is provided [51] Int. Cl.
  • G0lp 5/14 which can alternately be inserted into the chamber in [58] Field of Search 73/205, 211, 228; 137/551, the region of the outlet to extend across the entire 137/559 cross-sectional area of the chamber, with each washer having a different flowthrough opening, so that de- [56] References Cited pending upon the size of the opening the flow through UNITED STATES PATENTS the chamber per unit of time can be predetermined.
  • the present invention relates generallyto the metering of liquid flow, and more particularly to an arrangement for effecting a metered flow of liquids.
  • one feature of the invention resides in an arrangement for metered flow of liquids, which comprises a housing provided with a chamber having an-inlet connectable with a supply and an outlet connectable with a user.
  • a pressure indicator is located in or communicates with the chamber, and means isprovided for setting a desired rate of liquid flow through the chamber per unit of time.
  • the present invention is based on the realization that with ordinary waterpressure as it prevails in water supply conduits available in homes, laboratories, and the like, it is readily possible to obtain the necessary flow of water per unit of time which is required to completely water photographic film material within a period of about 5 minutes. With the present invention this can be achieved independently of the water pressure in the conduit, or fluctuations thereof. Moreover, the period of time can be preselected.
  • the means is in form of a set of washers which can be inserted into the lower end of the chamber and extend across the entire cross-sectional area thereof, blocking the same, with each washer having one or more flowthrough apertures whose combined cross-sectional area will be different in each washer.
  • the desired rate of liquid flow can be changed simply by changing the washer, selecting one washer of a set whose flowthrough aperture or apertures has a cross-sectional area capable of affording the desired rate of flow.
  • the pressure indicator is advantageously in form of an airfilled upright tube having an upper closed end and a lower end which communicates with the chamber.
  • the tube may be coaxial with the wall bounding the cham ber and define therewith an annular clearance the upper end of which is closed and the lower end of which communicates with the chamber.
  • the pressure indicator as a piston which is arranged in the chamber itself, having an axial bore and being biased by a spring located in the chamber.
  • the inner surface bounding the chamber converge in upward direction towards the inlet of the chamber, with the convergence being conical and with the pressure indicator having a ball or spherical element which is located in the converging portion and is biased upwardly by a spring located in the chamber beneath the spherical element.
  • the arrangement according to the present invention makes it possible to water a supply of photographic film material in a much shorter time, for instance 5 minutes, than the 20 minute period heretofore required for the same purpose. Despite this reduction in time, the necessary degree of watering is obtained and the use of excess water is avoided.
  • the construction according to the present invention is exceedingly simple and the arrangement can therefore be produced highly economically, especially in view of the fact that no movable parts are necessary'which could lead to premature wear, and that the period of time for watering and the amount of water to be used can be preselected quite readily and can be read off a scale of the manometer with great ease.
  • FIG. 1 is an axial section illustrating a first embodiment of the invention
  • FIG. 1a is a plan view illustrating a set of two replaceable washers for use in the embodiment of FIG. 1;
  • FIG. 2 is a view similar to FIG. 1 illustrating a second embodiment of the invention
  • FIG. 3 is a view similar to FIG. 2 illustrating a third embodiment of the invention.
  • FIG. 4 is a view similar to FIG. 3 illustrating a fourth embodiment of the invention.
  • reference numeral 1 designates a cylindrical chamber having an upper open end provided with an inlet with which a nipple 2 is connected, and which latter can be in turn connected via a hose 4 with a nonillustrated source of liquid supply, for instance a water faucet.
  • the direction of flow is indicated by the arrow.
  • the lower end of the housing 1 has an outlet provided with a nipple 3 which can be connected via a hose 5 with a non-illustrated user, for instance with a watering capsule or tank for film material.
  • the arrangement is provided with an upright tube 6 which acts as a pressure indicator 12, the tube being airfilled and having an upper closed end and a lower end which communicates with the interior of the chamber 1 as shown.
  • the tube is of light-transmissive material, for instance transparent or translucent, so that the liquid therein can be seen, and is provided with a scale 7 on which an appropriate marking indicates the desired flowthrough level indicating (by reference to the level of liquid in the tube 6) the pressure in the chamber 1 or the desired flowthrough per unit of time.
  • the rate of flow can be varied by the insertion of one of a set of washers 8, each of which has a flowthrough aperture 9, with the crosssectional areas of the apertures in the different washers 8 being of different magnitudes and with the washers being readily exchangeable.
  • the device illustrated in FIGS. 1 and 1a is employed by admitting water or other liquid through the hose 4, so that it can enter the chamber 1. Since the liquid is under pressure, an overpressure will develop in the chamber 1, whose magnitude depends upon the extent to which the faucet of the water supply connected with the hose 4 has been opened. The water entering into the chamber 1 will in part enter via the aperture 9 into the hose 5 and from there to a user from where it can then flow through an outlet opening into a discharge conduit or the like.
  • a predetermined amount of water passes through the chamber 1 per unit of time at a certain pressure existing in the chamber 1. If the amount of water which is to pass through the chamber 1 per unit of time, for instance which is required to obtain the desired watering of a film during a period of 5 minutes, is known, then it will be readily apparent that if a washer 8 having an aperture 9 of predetermined crosssectional area is interposed in the flow it is possible to provide a marker on the scale 7 of the tube 6 which indicates the level to which the water in the tube 6 must rise to indicate that the desired rate of flow per unit of time through the chamber 1 has been achieved. Thus, it is a simple matter to set the desired rate of flow through the chamber 1 by opening or closing the faucet to a greater or lesser degree until the level of water in the tube 6 coincides with the marking on the scale 1.
  • the washer 8 can be replaced with another washer 8 (see FIG. la) having a flowthrough aperture 9 whose cross-sectional area may be greater or lesser than that of the previous washer 8, depending upon whether it is intended to increase or decrease the rate of flow per unit of time.
  • the lower end portion of the wall bounding the chamber 1 is configurated as a cap as shown in FIG. 1, so that it can be unscrewed to permit removal of the washer 8 and insertion of a different one.
  • FIG. 2 The embodiment in FIG. 2 is analogous to that of FIG. 1 except that the pressure indicator is constructed differently. Like reference numerals designate like elements, except that a prime symbol has been used.
  • the chamber is designated with reference numeral 1 and is coaxially surrounded by a tube 11 which defines with it an annular gap 10 whose upper open end is closed and whose lower end communicates with the interior of the chamber 1.
  • Reference numeral 12' designates the pressure indicator per se and reference numeral 7' designates the scale provided on the tube 11.
  • FIG. 3 I have illustrated an embodiment in which the pressure indicator 12" is a piston-type indicator having a piston 15 located in the chamber 1" itself and being provided with an axial bore 13, a spring 14 also being located in the chamber 1 and tending to bias the piston 15 upwardly towards the inlet of the chamber 1".
  • the operation of manometers of this type is too well known to require a detailed description.
  • a further pistontype indicator is illustrated, except that the piston here is constituted by a ball or spherical element 18 which is pushed upwardly by an expansion spring 13 surrounding a guide rod 20 provided on the element 18.
  • the element 18 is pushed into engagement with the inner wall surface 16 of the chamber 1" which converges conically in upper direction towards the inlet.
  • the spherical element 18 is pushed downwardly by the water pressure against the action of the spring 17, and is maintained in a position of equilibrium depending upon the flow speed and pressure of the incoming liquid.
  • the position of the element 18 can be read off a scale (not shown) corresponding to the scale 7 in FIG. 3, and the level of the element 18 can be raised or lowered until it is located opposite the marking on the scale, by further opening or closing the faucet of the liquid supply, until the predetermined desired level or rate of liquid flow through the chamber per unit of time has been reached.
  • Arrangement for metered flow of washing liquids in the developing of photographic material comprising a housing provided with a chamber having an inlet connectable with a supply and an outlet connectable with a user; setting means connected to said housing, and
  • said housing comprises a wall which bounds said chamber and is at least in part transparent.
  • said piston subdivides said chamber longitudinally into two compartments of which one communicates with said inlet and the other communicates with said outlet, said bore in said piston communicating with both of said compartments; and wherein said spring is located in said other compartment and bears upon said piston.
  • said housing includes a wall which bounds an end of said other compartment which is remote from said one compartment; and wherein said spring is a helical spring having opposite ends which bear against said wall and said piston, respectively.
  • said setting means comprising a plurality of insert members selectively and individually connectable to said housing, each of said insert members having at least one flowthrough aperture of predetermined cross-sectional area, and the cross-sectional areas being different in the respective different insert members.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
US00298275A 1971-10-18 1972-10-17 Arrangement for metered flow of liquids Expired - Lifetime US3835885A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712151786 DE2151786A1 (de) 1971-10-18 1971-10-18 Vorrichtung zum dosierten zufuehren von einem wasserleitungshahn entnommenem wasser zu einer waesserungseinrichtung

Publications (1)

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US3835885A true US3835885A (en) 1974-09-17

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US00298275A Expired - Lifetime US3835885A (en) 1971-10-18 1972-10-17 Arrangement for metered flow of liquids

Country Status (5)

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US (1) US3835885A (enrdf_load_stackoverflow)
JP (1) JPS4850733A (enrdf_load_stackoverflow)
DE (1) DE2151786A1 (enrdf_load_stackoverflow)
FR (1) FR2156753B1 (enrdf_load_stackoverflow)
GB (1) GB1396759A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136692A (en) * 1976-02-19 1979-01-30 Michael Goldowsky Flow meter administration device
US4374991A (en) * 1976-12-17 1983-02-22 Rohm And Haas Company 2,6-Dimethylpiperidinyl-N-carbobutoxymethyl urea
US4423627A (en) 1980-09-15 1984-01-03 Cavileer Watson V Flow meter
US4573361A (en) * 1983-10-05 1986-03-04 Klaus Kobold Float-type flowmeter
US4779762A (en) * 1984-05-30 1988-10-25 Nordson Corporation Method and apparatus for controlling the gas content of dispensed hot melt thermoplastic adhesive foam
US4938078A (en) * 1987-07-22 1990-07-03 Klaus Kobold Method and apparatus for measuring flow rate
US5717137A (en) * 1996-02-01 1998-02-10 Standex International Corporation Flow monitoring line strainer
DE29821673U1 (de) * 1998-12-04 2000-04-13 Zucht, Manfred, 82275 Emmering Fluidtechnische Einrichtung, insbesondere Durchflußsensor mit Gehäuse aus Leitungsverbindungselementen

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480936A1 (fr) * 1980-04-16 1981-10-23 Taco Armaturen Ag Appareil de reglage de debit, notamment pour des canalisations de liquides
FR2510758A1 (fr) * 1981-07-30 1983-02-04 Oreal Procede de prelevement et d'analyse par chromatographie sur plaque et dispositifs permettant sa mise en oeuvre
WO2014026221A1 (en) 2012-08-12 2014-02-20 Vpas Group Pty Ltd Gas flow indicator
US10307558B2 (en) 2016-12-29 2019-06-04 Vpas Group Pty Ltd Gas flow indicator device
AU2018293924B2 (en) 2017-06-28 2024-05-30 Vpas Group Pty Ltd Gas flow indicator device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1365488A (en) * 1918-12-17 1921-01-11 Hydrex Engineering Corp Flow-indicator
US1649602A (en) * 1921-11-10 1927-11-15 Simplex Valve & Meter Company Fluid meter
US1697344A (en) * 1926-07-06 1929-01-01 Campbell Engineering Company Measurement and regulation of flow of steam or other fluid
US2105017A (en) * 1936-05-27 1938-01-11 American Gas Ass Means for metering fluid flow
US2306940A (en) * 1941-10-22 1942-12-29 Fischer & Porter Co Flow meter
US2487083A (en) * 1945-05-16 1949-11-08 Howard D Warshaw Fluid flow responsive transmitter for telemetering systems
US3017885A (en) * 1959-03-30 1962-01-23 Robicsek Francis Blood flow meter
US3472275A (en) * 1967-07-28 1969-10-14 Baker Oil Tools Inc Flow regulator apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR354019A (fr) * 1905-05-06 1905-09-26 Cie Francaise De L Ozone Indicateur de débit d'ozone, ou autres gaz
GB191325321A (en) * 1913-11-06 1915-02-08 William Wilson Hamill Improvements in Liquid Meters.
FR791401A (fr) * 1935-06-18 1935-12-11 Procédé et dispositifs pour contrôler la consommation de liquide d'un appareil d'utilisation
US2814950A (en) * 1955-04-20 1957-12-03 Joseph P Lawlor Flow indicator for filter apparatus
FR1295583A (fr) * 1961-04-28 1962-06-08 Commissariat Energie Atomique Appareil de mesure de débit
US3339580A (en) * 1965-03-22 1967-09-05 Republic Mfg Company Flow regulator
FR1510440A (fr) * 1967-02-06 1968-01-19 Appareil de mesures des débits de fluides

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1365488A (en) * 1918-12-17 1921-01-11 Hydrex Engineering Corp Flow-indicator
US1649602A (en) * 1921-11-10 1927-11-15 Simplex Valve & Meter Company Fluid meter
US1697344A (en) * 1926-07-06 1929-01-01 Campbell Engineering Company Measurement and regulation of flow of steam or other fluid
US2105017A (en) * 1936-05-27 1938-01-11 American Gas Ass Means for metering fluid flow
US2306940A (en) * 1941-10-22 1942-12-29 Fischer & Porter Co Flow meter
US2487083A (en) * 1945-05-16 1949-11-08 Howard D Warshaw Fluid flow responsive transmitter for telemetering systems
US3017885A (en) * 1959-03-30 1962-01-23 Robicsek Francis Blood flow meter
US3472275A (en) * 1967-07-28 1969-10-14 Baker Oil Tools Inc Flow regulator apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136692A (en) * 1976-02-19 1979-01-30 Michael Goldowsky Flow meter administration device
US4374991A (en) * 1976-12-17 1983-02-22 Rohm And Haas Company 2,6-Dimethylpiperidinyl-N-carbobutoxymethyl urea
US4423627A (en) 1980-09-15 1984-01-03 Cavileer Watson V Flow meter
US4573361A (en) * 1983-10-05 1986-03-04 Klaus Kobold Float-type flowmeter
US4779762A (en) * 1984-05-30 1988-10-25 Nordson Corporation Method and apparatus for controlling the gas content of dispensed hot melt thermoplastic adhesive foam
US4938078A (en) * 1987-07-22 1990-07-03 Klaus Kobold Method and apparatus for measuring flow rate
US5717137A (en) * 1996-02-01 1998-02-10 Standex International Corporation Flow monitoring line strainer
US5820715A (en) * 1996-02-01 1998-10-13 Standex International Corporation Method of making flow monitoring line strainer having flow indicating element
DE29821673U1 (de) * 1998-12-04 2000-04-13 Zucht, Manfred, 82275 Emmering Fluidtechnische Einrichtung, insbesondere Durchflußsensor mit Gehäuse aus Leitungsverbindungselementen

Also Published As

Publication number Publication date
DE2151786A1 (de) 1973-04-26
GB1396759A (en) 1975-06-04
FR2156753B1 (enrdf_load_stackoverflow) 1976-08-20
JPS4850733A (enrdf_load_stackoverflow) 1973-07-17
FR2156753A1 (enrdf_load_stackoverflow) 1973-06-01

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